The distance of a planet (and dwarf planet Pluto) is from
the sun and the speed of the planet, given at any given the number of Earth
days (and partial Earth days) from the perihelion. A planet is at its perihelion is when the
planet is closest to the Sun in its elliptical orbit. Earth is at its perihelion approximately
January 3 to January 5 annually.

Equations

Angle used:

θ = 360° * d/N

d = number of days from perihelion

N = number of days in a planet’s “year”, or number of
days it takes for a planet to make one orbit around the Sun